Alcatel OmniSwitch 7700 Hardware User's Manual page 97

Installing and Managing Power over Ethernet (PoE)
5
Verify all changes made to port 3/12:
-> show lanpower 3
Port Maximum(mW) Actual Used(mW)
----+-----------+---------------+--------------------+---------+------
1 15400
2 15400
3 15400
4 15400
5 15400
6 15400
7 15400
8 15400
9 15400
10 15400
11 15400
12 20000
13 15400
(Additional output not shown)
Note that the operational status for port 3/12 is on. Also, the maximum power allowance has been
increased to 20000, and the port priority status is critical. Port 3/12 is now ready for the new wireless
LAN device to be added.
6
To further manage the power budget on the switch, the user can reduce the maximum power allow-
ance on another OS7-ENI-P24 installed in the chassis (in this case, the module installed in slot 4).
The default value for a PoE-capable slot is 210 watts. For this example, the maximum power allow-
ance will be reduced to 70 watts in order to conserve the PoE power budget:
-> lanpower 4 maxpower 70
7 Verify the changes made to slot 4:
-> show lanpower 4
(Initial output not shown)
Slot 4 Max Watts 70
364 Watts Total Power Budget Remaining
514 Watts Total Power Budget Available
1 Power Shelf Power Supplies Available
Note that the maximum power allowance for slot 4 is 70 watts, as specified at step 5. By reducing the
power allowance for all ports in this slot, PoE power is conserved. A high-use PoE slot (e.g., slot 3)
will have an increased power budget from which to draw necessary power for incoming PDs.
OmniSwitch 7700/7800 Hardware Users Guide
Status
3000 Powered On
3000 Powered On
3000 Powered On
3000 Powered On
3000 Powered On
3000 Powered On
3000 Powered On
3000 Powered On
3000 Powered On
3000 Powered On
3000 Powered On
3000 Powered On
3000 Powered Off
April 2005
Power over Ethernet Tutorial
Priority On/Off
Low ON
Low ON
Low ON
Low ON
Low ON
Low ON
Low ON
Low ON
Low ON
Low ON
Low ON
Critical ON
Low ON
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